After the Arctic tree went kablooey, survivor Jo Creasy is sent to the Orkneys to keep an eye out for more black flowers. In New York, the Mayor elect lays some plans to clear the decks of old foes and old friends. All around the world the Trees continue to exert their silent, invisible pressure on the tiny humans around them. A brilliant distillation of the modern sense of creeping, impending, invisible catastrophe being studied by some, ignored by most and changing everything in small increments and sudden nasty little bursts of disaster. The all-encompassing inevitability is a potent metaphor for environmental collapse and socio-political constriction. Heavy, but awesome.